| Value |
Category |
| 20 |
|
| 34 |
|
| 50 |
|
| 73 |
|
| 77 |
refused |
| 80 |
|
| 88 |
don't know |
| 99 |
missing |
| 100 |
|
| 160 |
|
| 200 |
|
| 300 |
|
| 390 |
|
| 500 |
|
| Sysmiss |
|
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.